hi , Does anyone know how resilient HD2 screens are to image burn in.
Is there a way to have the backlight go off rather than dimmed after a time on non use without disabling the auto screen brightness on normal use. I want to have the HD2 working (gps app) 24/7, and have had to untick switch off after a certain period of activity to keep it from switching off, but I cant find an option or hack to have the backlight off but the unit still operative other than to disable the auto brightness which I like and then manually turn it down. Its automatic dimming still leaves it unnecessarily bright with no one looking at it and I did think about image burn with extended periods even at 30 percent brightness. Thx folks.
So I've been doing some general googling, and I haven't come across a good solution for my issue, so I thought I would post it here. Nexus 7 is mounted on the dash of my car. Powers on and powers off (deep sleep), connects to hotspot fine, generally, is working great. HOWEVER, there is one feature that I would love to be able to replicate from OEM in dash systems that I've seen. I would like the screen to dim when the unit isn't actively being used. Not time out and go to sleep, just dim (or maybe even turn off the LED backlight). Then, when I tap the screen, I want the screen to come back to automatic brightness mode based on the ambient light sensor. I've found plenty of apps that will turn the screen on or off with various gestures and such, but they all seem to require disabling or otherwise changing the way the ambient light sensor works. From those of you that use these in your car, I'm hoping that you have some suggestions. Thanks in advance.
bigdogbts said:
So I've been doing some general googling, and I haven't come across a good solution for my issue, so I thought I would post it here. Nexus 7 is mounted on the dash of my car. Powers on and powers off (deep sleep), connects to hotspot fine, generally, is working great. HOWEVER, there is one feature that I would love to be able to replicate from OEM in dash systems that I've seen. I would like the screen to dim when the unit isn't actively being used. Not time out and go to sleep, just dim (or maybe even turn off the LED backlight). Then, when I tap the screen, I want the screen to come back to automatic brightness mode based on the ambient light sensor. I've found plenty of apps that will turn the screen on or off with various gestures and such, but they all seem to require disabling or otherwise changing the way the ambient light sensor works. From those of you that use these in your car, I'm hoping that you have some suggestions. Thanks in advance.
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Hi, bigdogbts...
What you suggest certainly sounds feasible. I have no immediate solution, just some ideas/pointers.
Three pieces of software come to mind...
A Custom Launcher such as Apex or Nova. These give you a double tap gesture on the screen, which you can associate with some action to run... app, shortcut or 'activity'.
Lux Auto Brightness.
https://play.google.com/store/apps/details?id=com.vito.lux
This is capable of reducing the screen brightness right down to zero, such that the device looks likes it's turned off.
Tasker.
https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm
An app which is capable of automating all sorts of things on an Android device. You can associate an action instigated by the the user with a desired objective. Unfortunately, it has a bit of a steep learning curve... I bought it myself a few months ago, and I still haven't got around to really fully understanding it.
I suspect that if you can 'associate' Lux Auto Brightness (set with some pre-arranged brightness settings, ie., a completely dark screen) with a specified action (like double tapping the screen) with either Apex or Nova launchers (via gesture) or possibly with Tasker, maybe via a script...then you may be able to accomplish your goal.
As I've said, I think that what you're asking sounds possible... it's just a case of finding the right apps, and 'stitching' them all together. And maybe with a bit of tinkering with the apps I've mentioned, you can, hopefully, get something that works,
Good luck.
Rgrds,
Ged.
I think tasker can do something like that.
Hi everyone
I want to share a workaround to all of us who owns a defective S5
Symptom: You unlock your phone and it doesn't show anything. Actually, the phone is working. Capacitive buttons light up and you may heard some activity in the phone
Your phone has a defective screen. There are a lot S5 which have this problem, according to several forums. After several tries, unlock and lock over and over, the screen light up and you are able to use your phone. The problem is when you receive a call and you want to know who is calling you, the screen doesn't illuminate and you won’t be able to know who is.
Here's a workaround which makes your powerful S5 usable and take out from your drawer.
Solution:
The more effective way to fix it is: change defective screen! But sometimes it could cost as much as a new phone, or simply you can't afford it, and it's better to change your phone instead, and you put your S5 in a drawer.
The technical explanation of this problem is: Screen doesn't receive enough electrical current at low brightness levels (maybe the flex is defective, get old, etc)
Most probably the wake up problem exist together with screen flicker at low brightness levels
The wake up problem rises up more in dark environment, when light sensor make low bright screen
The lock screen light up screen, with a dim effect: when you lock the phone, it slowly turn screen off, and when you unlock, it make and effect of dim screen.
When you are is in dark environment, the effect is very slow, preventing the screen illuminate because the technical problem explained before.
When you are in very light environment, you lock screen and sensor light make the screen very brilliant and chances are you defective phone wakes up correctly.
We can use an app which give us complete control over brightness subsystem. I use an app called Velis AutoBrightness:
Once installed from Play Store, it shows a Setting Wizard. Follow the instructions. Below are some notes
• 1/7: Welcome Screen
• 2/7: How bright... Most probably is your phone always have flicker in low brightness. Choose "AMOLED" or "AMOLED bright". By the way choosing any one of those cure always minimum brightness failure!
• 3/7: Choose High sensitivity
• 4/7: On, if you want additional brightness when charging. Irrelevant for this thead. Choose your favorite setting
• 5/7: Same of 4/7
• 6/7: Choose enable: That enable the app
• 7/7: Some additional notes: Press Done
Now important settings: go to Menu > Settings > General: Settings Mode > Advanced
Service Activation settings:
• Disable system handler > ON: When you use Power saving mode, you surely noted screen flicker, which is very annoying, and make unusable power saving mode. By set this ON: Android doesn't set screen too dim; instead Velis have a minimum of brightness set by Wizard 2/7. (Surely you find out that you avoid screen flicker, by setting autobrightness off and slider in 8-10%)
Sensors settings:
• Screen-on sensor value override: Set this value to 30000. Read below this post if you want technical explanation of this setting
After you establish these settings, you'll be able to unlock your phone all the time!
This is the trick: When you unlock your phone, you'll note that the screen is very bright (because Screen-on to 30000) and quickly adjust to the environment light. The failure is that electrical current to screen is defective, and when exterior light is dark, the screen make a dim effect and doesn't light up.
Note to Marshmallow users:
• This app make use of Screen overlay permisions: And marshmallow is very restrict with this kind of app. This is specially true when you are installing an app. All you have to do is deactivate the app in notification screen: press "OFF" button, adjust system brightness upper enough to not flicker the screen, install your app, and activate Velis Autobrightness again
• Because of Doze mode, wake up from this mode may avoid your screen light up, the first time you use your phone. Let 10-15 seconds your phone wake up, lock again, and unlock again, and velis will make its work!
I hope this post make your smartphone usable. I barely apply this trick to two phones, but I think this is a good workaround!
I used this app & the flickering is still available
What worked for me is downgrading the firmware on my g900f all the way back to Android 4.0. My phone came with version 5.0 and I noticed the problem only after I kept installing samsung's system updates. Will report if the problem starts up again but I'm running rooted and running nougat just fine so I don't see a reason to keep upgrading the firmware.
Edit: nevermind, this didn't work
Reyse said:
The technical explanation of this problem is: Screen doesn't receive enough electrical current at low brightness levels (maybe the flex is defective, get old, etc)
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Does anyone know for sure if it's the flex cable or some capacitors? I notice only the lower half of my screen flickers.. I bet there's a simple electrical fix for it instead of replacing the whoooole display
fbs said:
Does anyone know for sure if it's the flex cable or some capacitors? I notice only the lower half of my screen flickers.. I bet there's a simple electrical fix for it instead of replacing the whoooole display
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Hello,
Have you change jour battery? If it s old it could cause some issues...
But try to buy a genuine one, I think that your battery must be old now.
Bye
cedouic said:
Hello,
Have you change jour battery? If it s old it could cause some issues...
But try to buy a genuine one, I think that your battery must be old now.
Bye
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it doesn't make any sense. the lower half of the screen flickers in green even on charger
fbs said:
it doesn't make any sense. the lower half of the screen flickers in green even on charger
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I noticed that screen only flickers at low brightness when using Boeffla kernel for LOS14 and others based on it.
No issue for the same device with LOS or Stock based kernels.
zlazaar said:
I noticed that screen only flickers at low brightness when using Boeffla kernel for LOS14 and others based on it.
No issue for the same device with LOS or Stock based kernels.
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you're wrong
I was using los16 with stock kernel for months with flicker everyday
fbs said:
you're wrong
I was using los16 with stock kernel for months with flicker everyday
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+1 to that , i even went back to stock and the screen flicker appeared and such issues are well known already with samsung amoled panels back in 2014-even some panels from 2018 . So def not kernel related.
I was using los 15.1 and this problem got worse. The phone was barely usable as mentioned by the op. In my case, the screen would start flickering below 60%. Then I switched back to stock marshmallow. I noticed that 100% brightness in los 15.1 is actually only about 70% in the stock rom.
I have been using the phone at 80% brightness for some weeks now and the problem has significantly reduced. But not completely gone, it's much much better. Also, you might want to avoid using dark wallpapers.
LG K20 Plus boots up then screen dims about every 5 seconds. Had to find an app to keep the screen on. Went to settings/display and tried various settings but non would work to keep the screen on for any designated time adjustment. Any suggestions? Also, other issue; after setting up the fingerprint security, that doesn't work Phone boots up and on screen says fingerprint not working put in your pin which does work.
Yesterday, while in Ambient Mode, a heart-rate monitor displayed on the screen above the time with my current heart-rate. I have not been able to duplicate it. Anyone have any ideas on how/why it showed up? I didn't even know Ambient Mode had that ability...
Occur in essential mode "only" when you press Up button (or down ?) or in exercice mode.
Thank you. I didn't think it was in Essential Mode... Though it's weird it won't show when in regular Ambient mode...